What are the conditions of use of the PLC control cabinet?
Release time:
2022/10/03 20:28
Control cabinet, what is the scope of application?
Control cabinet switching power supply: 24V DC,220v single-phase AC current,(-10%,15%),50HZ
Waterproof rating: IP41 or IP20
Control cabinet natural conditions: natural environment temperature 0-55. Avoid direct sunlight. The air humidity of the air is less than 85% (non-cold). Avoid strong vibration sources, avoid frequent or continuous vibration, and the vibration frequency is 10-55HZ. Protects against corrosive and flammable gases.
What is the main purpose of the control cabinet?
Typical use: frequency conversion constant pressure water supply, air compressor, fan pump, household central air conditioning, port crane, CNC lathe, heating furnace, paper machine, food machinery and equipment.
In order to ensure the reliability and sex of the system, before designing the system, in-depth understanding of the natural environment of the assembly site, and then build the system.
Basically, it is necessary to reduce ground stress (temperature, ambient humidity, vibration, impact, corrosive vapor, overcurrent, noise, etc.) In the control cabinet to what extent the implementation of preventive measures, should be considered when the impact of obstacles and environmental settings.
And based on the cost of preventive measures to determine. According to the early implementation of preventive measures, can improve the stability, improve the long-term utilization rate.
What is the installation environment of the control cabinet?
The following describes the living environmental conditions and preventive measures when assembling the control cabinet ().
Temperature
The ambient temperature of the control cabinet is related to the temperature of the electronic devices and generally needs to be within the range of 5~40 ℃. On the other hand, because of the space saving and miniaturization of equipment and systems such as natural cooling control cabinets that are not forced to cool, the cabinets themselves are becoming more and more miniaturized. Therefore, the temperature inside the cabinet is sometimes increased by 10 to 10 when compared with the temperature outside the cabinet. Therefore, the following countermeasures should be taken to deal with the heating problem on the assembly site and in the cabinet: please try to maintain a good temperature margin, so that the temperature in the cabinet shall not exceed the application temperature range of the generator set, so that it can be applied within the available temperature range.
Of course, air-cooled (air circulation in the left and right louver curtains of the cabinet).
When installing in the control cabinet, do not use refrigeration equipment such as fans and central air conditioners. At this time, the matters needing attention in assembly are as follows:
Must be installed at the top of the warm air collection box.
To ensure natural ventilation indoor space, the left and right part and the other, wiring pipeline should maintain a good interval.
Must be installed in a specified orientation (e. g., vertical or upside down), as abnormal generation of heat may occur due to internal structure.
It should be directly installed on the machine with large calorific value, such as electric heater, transformer and large space resistor.
The control cabinet protects the area from direct sunlight.
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